PPT-Phase Diagram

DEVELOPMENT OF MICROSTRUCTURE IN EUTECTIC ALLOYS Depending on composition several different types of microstructures are possible for the slow cooling of alloys belonging to binary eutectic systems. INTRODUCTION. At sea level. At top of a mountain. Water boils at 100. C. Water boils at < 100. C. b.P. = f(P). P = 1.0133 bar. bp. = 100. C. P = 0.26 bar. bp. = 69. C. elevation = 8848 m. (TKK-2246). 14/15 Semester 2. Instructor: Rama . Oktavian. Email: rama.oktavian86@gmail.com. Office Hr.: . M – F.13-15. Outlines. . 1. . Solid-liquid equilibrium. . 2. . Liquid-solid phase diagram. KITPC. , Aug. 3, 2015. 1. Weihua. Li. weihuali@fudan.edu.cn. State . K. ey Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, . Fudan. University, Shanghai, China. GLY 4200 . Fall, 2016. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. INTRODUCTION. At sea level. At top of a mountain. Water boils at 100. C. Water boils at < 100. C. b.P. = f(P). P = 1.0133 bar. bp. = 100. C. P = 0.26 bar. bp. = 69. C. elevation = 8848 m. T-zero line, para-equilibrium. Experimental methods of phase diagram determination. C. D. Composition. a. Schematic phase diagram; b. Thermal analysis of alloy X. 2. ; c. XRD of series of alloys - phase boundaries from lattice parameter vs. composition; a. diffusion couple X. Application of phase diagrams in development of transparent polycrystalline oxides and thermal barrier coating. Phase diagrams for production of transparent polycrystalline materials. Polycrystalline oxides are used for optical applications. The Al. Mohanty. NISER. Outline:. Phase Diagram of QCD. Experimental Realization. Summary . INSA Meeting, NISER – December 28-30, 2016. The Phase Diagram of QCD . 01/21. P. hase diagram . Phase diagram of Water . GLY 4200 . Fall, . 2017. 2. Unary Diagrams. Unary diagrams . have a single component. We therefore usually choose to plot both P (pressure) and T (temperature) since composition is not a variable. Examples. The constellation diagram is as shown. The general equation is given by. . S. 1. (t. ) = g(t) . cos(2π. ft. ). . S. 2. (t) = g(t) cos(2π. ft. π) = -g(t) cos(2π. ft. E. nergy vs. Composition . C. urves. To construct free energy vs. composition curves given a . eutectic . phase diagram and vice versa.. . Learning Objectives . Fall, 2017. 2. Binary Diagrams. Binary diagrams have two components. We therefore usually choose to plot both T (temperature) and X (composition) with pressure held constant. P-X (T fixed) or P-T (X fixed) are also possible. OXIDE -FERRIC OXIDE (UDC 542.92) E. I. Speranskaya, V. M. Skorikov, E. Ya. Rode, and V A. Terekhova N. S. Kurnakov Institute for General and Inorganic Chemistry, Academy of Sciences, USSR Translate Allotropic Transformations in Iron. Iron is an allotropic metal, which means that it can exist in more than one type of lattice. structure depending upon temperature. A cooling curve for pure iron is shown in fig:.